(1) Invention patent: mainly used for the invention of new products, new processes and new technologies. Compared with strict review, it has to go through two stages: formal review and substantive review.
(2) utility model patents: related inventions mainly used for product improvement. The exam is relatively loose, and only a formal exam is needed.
(3) Appearance patent: it is mainly used to improve the shape of products and protect the appearance of products, and the examination is relatively loose.
Patents for inventions and utility models should be novel, creative and practical; The patented design does not belong to the existing design, and before the date of application, no unit or individual has applied to the patent administration department of the State Council for the same design, and it is recorded in the patent documents published after the date of application.
As for whether the design can apply for a patent, it is best to find a professional agency first, and an experienced patent agency engineer will search the existing technology in the design field before drawing a conclusion.